| Okazaki, Shinobu | Shinobu Okazaki | Designer | 1991 | 1 | |
| Ohsawa, Kaoru | Kaoru Ohsawa | Lighting Designer | 1991 | 1 | |
| Obrecht, Urs | Urs Obrecht | Actor | 1991 | 1 | |
| Overloop, Veerle van | Veerle van Overloop | Actor | 1993 | 1 | |
| Ollinger, Hans | Hans Ollinger | Actor | 1993 | 1 | |
| Orthmann, Ruth | Ruth Orthmann | Translator | 1994 | 1 | |
| Ortmayr, Heinrich | Heinrich Ortmayr | Actor | 1982 | 1 | |
| Okhlupin, Igor | Igor Okhlupin (Игорь Охлупин) | Actor | 2013 | 1 | |
| Olszewska, Izabella | Izabella Olszewska | Actor | 1994 | 1 | |
| O'Connor, Frances | Frances O'Connor | Actor | 1994 | 1 | |
| Ogawa, Shinji | Shinji Ogawa | Actor | 1980 | 1 | |
| Oug , Linda | Linda Oug | Actor | 1980 | 1 | |
| O'Donoghue, Brian | Brian O'Donoghue | Lighting Designer | 1980 | 1 | |
| O'Brien , Paul | Paul O'Brien | Actor | 1980 | 1 | |
| Ostan, Boris | Boris Ostan | Actor | 1994 | 1 | |
| Ostan Vejrup, Jette | Jette Ostan Vejrup | Actor | 1994 | 1 | |
| Osmond, David | David Osmond | Actor | 2012 | 1 | |
| O'Connor, Francis | Francis O'Connor | Designer | 2000 | 1 | |
| O'Kane, Patrick | Patrick O'Kane | Actor | 2000 | 1 | |
| Oman, Julia , Trevelyan | Julia Trevelyan Oman | Designer | 1980 | 1 | |
| Odegard, Julia | Julia Odegard | Actor | 1980 | 1 | |
| Ognjanov, Ivo | Ivo Ognjanov | Actor | 1994 | 1 | |
| Ortmann, Sandra | Sandra Ortmann | Mask Maker | 1996 | 1 | |
| Opela, H. Kevin | H. Kevin Opela | Actor | 1996 | 1 | |
| Oligny, Huguette | Huguette Oligny | Actor | 1996 | 1 | |
| Oswald, Christof | Christof Oswald | Actor | 1996 | 1 | |
| Oessling, Brigitte | Brigitte Oessling | Actor | 1995 | 1 | |
| Oldman, David | David Oldman | Designer | 1996 | 1 | |
| Opania, Bartosz | Bartosz Opania | Actor | 1997 | 1 | |
| Olree, Adriaan | Adriaan Olree | Actor | 1996 | 1 | |
| Ohlsen, Louise, Søeborg | Louise Søeborg Ohlsen | Actor | 1995 | 1 | |
| Olsson, Majvor | Majvor Olsson | Actor | 1997 | 1 | |
| Olsson, Kurt | Kurt Olsson | Actor | 1997 | 1 | |
| Orgal, Yehiel | Yehiel Orgal | Lighting Designer | 1995 | 1 | |
| Onizawa, Yoko | Yoko Onizawa | Sound Designer | 1996 | 1 | |
| Ostermann, Heinz | Heinz Ostermann | Actor | 1995 | 1 | |
| Ostaszewski, Jakub | Jakub Ostaszewski | Composer | 1995 | 1 | |
| Ohnishi , Tamae | Tamae Ohnishi | Actor | 1995 | 1 | |
| Oberlin, Karen | Karen Oberlin | Actor | 1995 | 1 | |
| Orlac, S. | S. Orlac | Director | 1995 | 1 | |
| Otte, Heidemarie | Heidemarie Otte | Mask Maker | 2002 | 1 | |
| Oudart, Gisèle | Gisèle Oudart | Actor | 1969 | 1 | |
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Contributors
